TY - GEN
T1 - P4PCN
T2 - 2019 IEEE Global Communications Conference, GLOBECOM 2019
AU - Yu, Ruozhou
AU - Wan, Yinxin
AU - Kilari, Vishnu Teja
AU - Xue, Guoliang
AU - Tang, Jian
AU - Yang, Dejun
N1 - Funding Information:
Yu (ryu5@ncsu.edu) is with North Carolina State University, Raleigh, NC 27606. Wan, Kilari and Xue ({ywan28, vkilari, xue}@asu.edu) are with Arizona State University, Tempe, AZ 85287. Tang (jtang02@syr.edu) is with Syracuse University, Syracuse, NY 13244. Yang (djyang@mines.edu) is with Colorado School of Mines, Golden, CO 80401. This research was supported in part by NSF grants 1704092, 1717197, 1717315, and 1525920. The information reported here does not reflect the position or the policy of the funding agency.
Publisher Copyright:
© 2019 IEEE.
PY - 2019/12
Y1 - 2019/12
N2 - Recent advances in security and cryptography have enabled new paradigms for secure networking in various scenarios. The payment channel network (PCN) is a notable example, which has emerged from the combination of the traditional credit network in economics and the latest blockchain technology. PCN provides a secure and efficient way for conducting payments, by addressing both the intrinsic financial risk of the credit network and the scalability issue of the blockchain. A crucial challenge in PCN is routing, i.e., to find a set of paths that fulfill a payment request. Due to the fully distributed and dynamic nature of PCN, existing routing algorithms utilize active probing to improve routing success probability. However, while the payment itself is privacy-preserving through existing protocols, the probing process can leak sensitive information including the location of the sender or the recipient. In this paper, we address the privacy of the users in the path probing process, filling in the last piece of the privacy puzzle in PCN. We propose P4PCN, a cryptographic protocol for anonymous active probing without knowing the identities or public keys of the intermediate nodes, while hiding the locations of sender and recipient as well as any path-related information. Our protocol is lightweight and scales with the number of hops a probe explores. We confirm its performance via real-world implementation and simulation experiments.
AB - Recent advances in security and cryptography have enabled new paradigms for secure networking in various scenarios. The payment channel network (PCN) is a notable example, which has emerged from the combination of the traditional credit network in economics and the latest blockchain technology. PCN provides a secure and efficient way for conducting payments, by addressing both the intrinsic financial risk of the credit network and the scalability issue of the blockchain. A crucial challenge in PCN is routing, i.e., to find a set of paths that fulfill a payment request. Due to the fully distributed and dynamic nature of PCN, existing routing algorithms utilize active probing to improve routing success probability. However, while the payment itself is privacy-preserving through existing protocols, the probing process can leak sensitive information including the location of the sender or the recipient. In this paper, we address the privacy of the users in the path probing process, filling in the last piece of the privacy puzzle in PCN. We propose P4PCN, a cryptographic protocol for anonymous active probing without knowing the identities or public keys of the intermediate nodes, while hiding the locations of sender and recipient as well as any path-related information. Our protocol is lightweight and scales with the number of hops a probe explores. We confirm its performance via real-world implementation and simulation experiments.
KW - Blockchain
KW - Payment channel network
KW - Privacy and anonymity
KW - Routing
KW - Universal re-encryption
UR - http://www.scopus.com/inward/record.url?scp=85081979179&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85081979179&partnerID=8YFLogxK
U2 - 10.1109/GLOBECOM38437.2019.9014080
DO - 10.1109/GLOBECOM38437.2019.9014080
M3 - Conference contribution
AN - SCOPUS:85081979179
T3 - 2019 IEEE Global Communications Conference, GLOBECOM 2019 - Proceedings
BT - 2019 IEEE Global Communications Conference, GLOBECOM 2019 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
Y2 - 9 December 2019 through 13 December 2019
ER -